5v-u=-2 and –v+9u=18, then the simultaneous solution of the given equation is:

a. u=3, v=9
b. u=2, v=0
c. u=1, v=-9
d. u=-2, v=-36
e. u=3, v=-15

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

What is the slope of the line passing through the points (3, 3) and (5, 7) ? 1. 2 2. 1/2 3. −2 4. −1/2